What are three true statements about quiescing virtual machine snapshots? (Choose three.)

A.
vSphere snapshot quiescing only occurs on Windows guest OSes.

B.
The quiescing operation is automatic with any snapshot.

C.
The quiescing operation varies by guest OS.

D.
Quiescing should occur before array-based snapshots to ensure consistency.

E.
VMware Tools is required for quiescing to be successful.